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fix rare race condition that causes infinite loop

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if we get a sigchld but all our children are gone by the time we get
around to reaping them (i don't think this should ever happen, but it
just did), then we'd loop forever trying to reap them.


svn:r2141
This commit is contained in:
Roger Dingledine 2004-08-04 06:49:17 +00:00
parent 6065f89544
commit 0c8542d889
1 changed files with 1 additions and 1 deletions
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src/or/main.c
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@ -842,7 +842,7 @@ static int do_main_loop(void) {
please_reset = 0; please_reset = 0;
} }
if(please_reap_children) { if(please_reap_children) {
while(waitpid(-1,NULL,WNOHANG)) ; /* keep reaping until no more zombies */ while(waitpid(-1,NULL,WNOHANG) > 0) ; /* keep reaping until no more zombies */
please_reap_children = 0; please_reap_children = 0;
} }
#endif /* signal stuff */ #endif /* signal stuff */